EP 2921666 B1 20170621 - EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
Title (en)
EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
Title (de)
ABGASREINIGUNGSVORRICHTUNG FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
DISPOSITIF DE PURIFICATION D'ÉCHAPPEMENT POUR UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
JP 2012079401 W 20121113
Abstract (en)
[origin: EP2921666A1] A particulate filter arranged in an engine exhaust passage is provided with alternately arranged exhaust gas inflow and outflow passages and porous partition walls separating these passages from each other. In each partition wall, a coated zone where a coated layer with an average pore size smaller than that of a partition wall substrate is used to cover the substrate surface and a non-coated zone downstream of the coated zone where the substrate surface is not covered by the coated layer are defined, and the ash in the exhaust gas can pass through the partition wall in the non-coated zone. The quantity of particulate matter trapped at the non-coated zones is calculated, and PM removal control for removing particulate matter from the particulate filter is performed when it is judged that the quantity of trapped particulate matter is greater than an allowable upper limit amount.
IPC 8 full level
F01N 3/022 (2006.01); F01N 3/023 (2006.01); F01N 3/035 (2006.01); F01N 9/00 (2006.01)
CPC (source: EP US)
F01N 3/022 (2013.01 - US); F01N 3/0222 (2013.01 - EP US); F01N 3/023 (2013.01 - US); F01N 3/035 (2013.01 - EP US); F01N 9/002 (2013.01 - EP US); F01N 9/005 (2013.01 - US); F01N 2330/60 (2013.01 - EP US); F01N 2510/0682 (2013.01 - EP US); F01N 2900/0408 (2013.01 - EP US); F01N 2900/1606 (2013.01 - EP US); Y02T 10/40 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2921666 A1 20150923; EP 2921666 A4 20160622; EP 2921666 B1 20170621; CN 104411928 A 20150311; CN 104411928 B 20170308; JP 5737479 B2 20150617; JP WO2014076767 A1 20160908; US 2015292387 A1 20151015; US 9689296 B2 20170627; WO 2014076767 A1 20140522
DOCDB simple family (application)
EP 12888605 A 20121113; CN 201280074483 A 20121113; JP 2012079401 W 20121113; JP 2014525234 A 20121113; US 201214441987 A 20121113